NCP434, NCP435

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2

PIN FUNCTION DESCRIPTION

Pin Name

Pin Number

Type

Description

IN

A2

POWER

Load−switch input voltage; connect a 1

mF or greater ceramic capacitor from IN to GND as

close as possible to the IC.

GND

B1

POWER

Ground connection.

EN

B2

INPUT

Enable input, logic high turns on power switch.

OUT

A1

OUTPUT

Load−switch output; connect a 1

mF ceramic capacitor from OUT to GND as close as

possible to the IC is recommended.

BLOCK DIAGRAM

EN block

Control

logic

Gate driver and soft

start control

IN: Pin A2

EN: Pin B2

OUT: Pin A1

GND: Pin B1

Optional:

NCP435

Figure 2. Block Diagram

MAXIMUM RATINGS

Rating

Symbol

Value

Unit

IN, OUT, EN, Pins

−0.3 to + 4.0

V

From IN to OUT Pins: Input/Output

0 to + 4.0

V

Maximum Junction Temperature

−40 to + 125

°C

Storage Temperature Range

−40 to + 150

°C

Moisture Sensitivity (Note 1)

MSL

Level 1

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

1. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J−STD−020.